AP077 is a fast-curing, easy-to-sand polyester filler and fairing compound sold in a white gallon that requires a BPO hardener. Designed for marine, automotive, and industrial repairs, it delivers a smooth, workable paste with reliable adhesion across many substrates.
-
Size/Packaging: White gallon container
-
Hardener required: BPO hardener required
-
Formulation: Polyester filler and fairing compound
-
Color: White
-
Adhesion: Exceptional adhesion to fiberglass, SMC, FRP, epoxy, graphite, Kevlar®, aluminum, wood, and more
-
Setting time: Very quick setting for faster repairs and shorter downtime
-
Shrinkage: Minimal shrinkage to maintain accurate dimensions and a clean finish
-
Finish edge: Feather-edge finish that sands readily
-
Application: Easy to apply with a squeegee, spatula, or flat tool for consistent application
-
Post-cure compatibility: Accepts virtually all types of coatings and decorative films after curing
-
Temperature tolerance: High service temperature capability for demanding environments
-
Moisture resistance: Low moisture absorption; suitable for above or below waterline applications
-
Finish and machinability: Excellent finishing and machinability for a smooth, high-quality surface
-
Applications: Gel coat blister repair; Fiberglass parts repair; Filling cloth imprints on FRP panels
-
Manufacturer: Sika
-
Manufacturer Part No: 606547
-
Product line: SikaBiresin AP077
AP077 delivers strong adhesion and rapid cure without compromising finish quality. Its broad compatibility with fiberglass, composites, metals, and wood makes it a versatile choice for boatyards, manufacturers, and DIY enthusiasts tackling marine, automotive, or industrial projects. The feather-edge, easy-to-sand finish helps achieve a clean, professional surface ready for coatings and decorative films after curing, while minimal shrinkage aids in maintaining accurate dimensions during repairs.
